<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<body>
		<script>
			let a = 3;
			a += 5;
			console.log(a);
			
			a *= 3; // a = a*3
			console.log(a);
		</script>
	</body>
</html>